package com.atguigu.gulimall.product.exception;

import com.atguigu.common.exception.BizCodeEnum;
import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;

/**
 * 集中处理所有异常
 */
@Slf4j
@RestControllerAdvice(basePackages = "com.atguigu.gulimall.product.app")
public class GulimallExceptionControllerAdvice {

    @ExceptionHandler(MethodArgumentNotValidException.class)
    public R heanleVaildException(MethodArgumentNotValidException e) {
        log.error("数据校验出现问题{},异常类型{}", e.getMessage(), e.getClass());

        BindingResult result = e.getBindingResult();
        Map<String, String> map = new HashMap<>();
        result.getFieldErrors().forEach((item) -> {
            map.put(item.getField(), item.getDefaultMessage());
        });

        return R.error(BizCodeEnum.VAILD_EXCEPTION).put("data", map);
    }

    @ExceptionHandler(Throwable.class)
    public R heanleException(Throwable t) {
        log.error("出现异常", t);
        return R.error(BizCodeEnum.UNKNOW_EXCEPTION);
    }
}
